Photo courtesy of EAA Sport Aviation: “L. Pazmany with first prize for Original Design won at EAA Fly-In at Corona Airport, October 7, 1962”
NOTES: With the newer, lighter engines (e.g. Lycoming O-233) and minor modifications, the PL-1 could be made to meet FAA Light-Sport Aircraft (LSA) category requirements. Note the requirement for stall speed: “A maximum stalling speed or minimum steady flight speed without the use of lift-enhancing devices (VS1) of not more than 45 knots calibrated airspeed at the aircraft’s maximum certified takeoff weight and most critical CG.” |
Engine | Continental C90-12F (Actual Performance) |
Lycoming 0-290-D2b (Estimated Performance) |
Gross Weight (lb) | 1,320 | 1,407 |
Wing Area (sq. ft) | 116 | 116 |
Wing Loading (lb/sq. ft) | 11.4 | 12.1 |
Power, T.O. (hp) | 95 | 140 |
Power, Rated RPM (hp) | 90 | 135 |
Rated Power Loading (lb/hp) | 14.7 | 10.4 |
Empty Weight (lb) | 800 | 881 |
Span (ft) | 28 | 28 |
Length (ft) | 18’11” | 18’11” |
Fuel Capacity (gal) | 25 | 25 |
Max Speed SL (mph) | 120 | 160 |
Cruise Speed SL (mph) | 115 | 155 |
Landing Speed SL, 37 deg Flap – 1.1VS (mph) |
56 | 59 |
Stall Speed SL, 37 deg Flap (mph) |
51 (44.3 knots) | 54 (46.9 knots) |
Rate of Climb SL (fpm) | 1,000 | 1,600 |
Usable Service Ceiling (ft) | 18,000 | 22,000 |
Normal Range SL (mi) | 500 | 450 |
Take-Off Distance/50 ft, 15 deg Flap (ft) |
784 | 560 |